cisco VPDN

hi

i have big trouble with VPDN !!
i can ping from my R1 router all ip addres on my CPE or lan behind him
but i cant ping from router connected on LNS
it seem that LNS dont route packets to virtual acces
wen i ping from cpe lan icmp arrive on destination but on back, they are
blocked by LNS
is there one limitation from vpdn ?
i dont have any acces rules

please help, i dont find error since two days !!!

thanks for your assistance,




R1#show vpdn

L2TP Tunnel and Session Information Total tunnels 1 sessions 1

LocID RemID Remote Name State Remote Address Port Sessions
19256 13584 HGT1 est 222.99.3.132 1701 1

LocID RemID TunID Intf Username State Last Chg
Fastswitch
21 11280 19256 Vi1 (E-Mail Removed). est 00:05:17
enabled

% No active L2F tunnels

% No active PPTP tunnels




LNS :
------------------------------------------------------------
vpdn enable
!
vpdn-group 1
accept-dialin
protocol l2tp
virtual-template 1
terminate-from hostname TGT1
local name LNS1
lcp renegotiation always
l2tp tunnel password 7 12110203
source-ip 222.103.2.41
!
interface Virtual-Template1
mtu 1492
ip unnumbered Loopback0
keepalive 3
ppp accounting authlist_ppp
ppp chap hostname LNS1
ppp multilink
!
interface Loopback0
ip address 222.103.2.41 255.255.255.255
!


conf CPE :
------------------------------------------------------------------------
interface Dialer1
mtu 1492
ip unnumbered Ethernet0
encapsulation ppp
dialer pool 1
dialer remote-name redback
dialer-group 1
keepalive 3 10
no cdp enable
ppp authentication chap pap callin
ppp chap hostname (E-Mail Removed)
ppp chap password 0 bobigny
ppp pap sent-username (E-Mail Removed) password 0 bobigny
!
router rip
version 2
network 10.0.0.0